One barrel of petroleum holds 42 gallons.
20
Cold water weighs more than hot water.
93
A cesium atom in an atomic clock beats over nine billion times a second.
43
If the chemical sodium is dropped into water it will immediately and violently explode.
67
The force of a suction cup is calculated using F=AP.
15
The left ear is more responsive to words of love and emotion whispered into it than the right.
40
Airports that are at higher altitudes require a longer airstrip due to lower air density.
39
Scientists in Germany have developed a candy that doesn't cause cavities.
11